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Duplex air governor and its control method

A technology of compound air conditioners and indoor units, which is applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., to achieve the effect of preventing liquid compression.

Inactive Publication Date: 2007-12-19
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The main purpose of the present invention is to overcome the defects existing in the existing compound air conditioner and its control method, and provide a new type of compound air conditioner and its control method. The technical problem to be solved is to make it control the electronic expansion valve, When the air conditioner is running in the warming mode, according to the temperature difference between the suction temperature of the compressor and the outdoor heat exchanger, the suction superheat can be raised to a state higher than the condensation temperature of the indoor unit by a specified temperature, which can prevent the occurrence of liquid compression and Improve the reliability and stability of the compressor, making it more suitable for practical use

Method used

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  • Duplex air governor and its control method
  • Duplex air governor and its control method
  • Duplex air governor and its control method

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Embodiment Construction

[0045] In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and methods of the compound air conditioner and its control method proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. Its effect is described in detail below.

[0046] Hereinafter, embodiments applicable to the present invention will be described in detail with reference to the accompanying drawings. Fig. 3 is a perspective view illustrating the structure of the multi-type air conditioner to which the present invention is applied, and Fig. 4 is a structural diagram illustrating the outdoor unit of the multi-type air conditioner to which the present invention is applied.

[0047] The composite air conditioner applicable to the present invention is shown in Figure 3 and Figure 4, by a pl...

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Abstract

The present invention relates to a duplex air conditioner and its control method. It is characterized by that in the duplex air conditioner composed of outdoor machine in which an outdoor heat exchanger, a compressor and on electronic expansion valve are mounted and several indoor machines which are connected together a detection portion for determining temperature of above-mentioned outdoor heat exchanger, suction temperature and discharge temperature of compressor and condensation temperature of every indoor machine and a control portion which can be used for controlling above-mentioned electronic expansion valve, making it utilize the compressor suction temperature determined by above-mentioned election portion and temperature of outdoor heat exchanger to calculate temperature difference and judge suction super heating temperature, at the same time making the suction super heating temperature be raised to more than defined temperature according to the condensation temperature of above-mentioned indoor machine are included. Besides, said invention also provides the concrete steps of its control method.

Description

technical field [0001] The present invention relates to a compound air conditioner and its control method, in particular to a method of controlling the electronic expansion valve to adjust the suction superheat according to the suction temperature of the compressor and the temperature difference of the outdoor heat exchanger when it is running in the heating mode. The multi-type air conditioner and its control method for making judgment and increasing the suction superheat degree above a specified temperature according to the condensing temperature of the indoor unit. Background technique [0002] Generally, an air conditioner mainly refers to a cooling room device that compresses, evaporates, and condenses a designated refrigerant so that it uses a fan to blow the cold air generated when the refrigerant evaporates and exchanges heat with the surrounding air into the room. In a building having a plurality of independent indoor spaces, a multi-type air conditioner consisting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 金光满
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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